Measurement of theD0,D+, andDs+lifetimes
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1988
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Abstract
We have measured the lifetimes of the D0, D+, and Ds+ mesons which were produced by a high-energy photon beam incident on beryllium. Using the Fermilab Tagged Photon Spectrometer with a silicon-microstrip vertex detector we have collected 108 events from which we have extracted about 4200 D0 decays in the K−π+ and K−π+π−π+ modes, 3000 D+ into the K−π+π+ channel, and a total of 230 Ds+ into φπ+ and K¯*0K+. From an analysis of these events we have determined the lifetimes for the D0, D+, and Ds+ to be 0.422±0.008±0.010, 1.090±0.030±0.025, and 0.47±0.04±0.02 psec, respectively.
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| Authors | J. R. Raab,J. C. Anjos,J. A. Appel,S. B. Bracker,T. E. Browder,L. M. Cremaldi,J. R. Elliott,C. O. Escobar,P. Estabrooks,M. C. Gibney,G. F. Hartner,P. E. Karchin,B. R. Kumar,M. J. Losty,G. J. Luste,P. M. Mantsch,J. F. Martin,S. McHugh,S. R. Menary,R. J. Morrison,T. Nash,U. Nauenberg,P. Ong,J. Pinfold,G. Punkar,M. V. Purohit,A. F. S. Santoro,J. S. Sidhu,K. Sliwa,M. D. Sokoloff,M. H. G. Souza,W. J. Spalding,M. E. Streetman,A. B. Stundia,M. S. Witherell;J. R. Raab;J. C. Anjos;J. A. Appel;S. B. Bracker;T. E. Browder;L. M. Cremaldi;J. R. Elliott;C. O. Escobar;P. Estabrooks;M. C. Gibney;G. F. Hartner;P. E. Karchin;B. R. Kumar;M. J. Losty;G. J. Luste;P. M. Mantsch;J. F. Martin;S. McHugh;S. R. Menary;R. J. Morrison;T. Nash;U. Nauenberg;P. Ong;J. Pinfold;G. Punkar;M. V. Purohit;A. F. S. Santoro;J. S. Sidhu;K. Sliwa;M. D. Sokoloff;M. H. G. Souza;W. J. Spalding;M. E. Streetman;A. B. Stundia;M. S. Witherell; |
| Journal | physical review d |
| Year | 1988 |
| DOI |
10.1103/physrevd.37.2391
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| URL | |
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